Effect of Cold Plasma on Meat Cholesterol and Lipid Oxidation.

Juan M Pérez-Andrés,Brijesh K Tiwari,Turid Rustad,Sabine M Harrison,Janna Cropotova,Patrick J Cullen,Nigel P Brunton

doi:10.3390/foods9121786

Abstract

Cold atmospheric plasma (CAP) is a novel non-thermal technology with potential applications in inactivating microorganisms in food products. However, its impact on food quality is not yet fully understood. The aim of this research is to study the impact of in-package plasma technology on the stability of cholesterol and total lipid in four different types of meat (beef, pork, lamb and chicken breast). Additionally, any changes in the primary or secondary lipid oxidation, which is undesirable from a health perspective, is investigated. CAP was not found to have any impact on the cholesterol or lipid content. However, higher peroxide and thiobarbituric acid reactive substances (TBARS) values were found for the treated samples, indicating that plasma can induce the acceleration of primary and secondary lipid oxidation. Finally, color was not affected by the treatment supporting the suitability of the technology for meat products.

Highlights

Our results show that the induced reactive species can degrade cholesterol in its pure report form
The same authors reported for pork butt treated for the same control samples, indicating that plasma can induce the acceleration of primary and secondary lipid durations as the beef loin (i.e., 2.5, 5 and 10 min)
Our results show that the induced reactive species can degrade cholesterol in its pure form

Summary

Introduction

Food and Agriculture Organization [1], the production of meat has increased by 1.7% from 2017 to. Cholesterol is present in all these meat products and plays an important role as a structural component of the phospholipid bilayer of the plasma membrane of eukaryotic cells. Cholesterol is fitted into membrane bilayers with its long axis, preventing the crystallization of fatty acyl chains and thereby modifying the activity of membrane-bound enzymes [2]. It has vital functions in the metabolism and function of body tissue [3]. Deficiencies in cholesterol during embryogenesis and organogenesis can cause severe abnormalities in the fetus [5]

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